A 30 year old male presents with a 3 day history of fevers and increasing breathlessness. On presentation he is noted to be severely hypoxic with sats of 80% on room air. The following chest X-ray is obtained:
Consider a 56 year old male with no past medical history presenting with 10 days of fevers, chills, myalgia and cough followed by worsening breathlessness over the past 4 days.